1.Studies on twelve cytokines in serum of coronary heart disease patients
Xing-Wang JIA ; Ya-Ping TIAN ; Guang-Hong GUO ;
Chinese Journal of Laboratory Medicine 2003;0(09):-
Objective The significance of serum cytokine profile in coronary heart disease patients have been evaluated by observing the variation cytokines Methods The serum IL-1 a,IL-1 ?,IL-2,IL-4, IL-6 ,IL-8,IL-10,VEGF,IFN-?,,TNF-?,MCP-1 and EGF in 76 patients and 26 matched healthy volunteers have been observed.Serum cytokines had been measured by protein chips methods in EVIDENCE 180 automatic biochips analyzer and cytokine profile were got by bioinformatics.Results The serum level of IL-1?,IL-6,IL-8,and TNF-? were (4.32?8.14) ng/L ,(13.16?16.81) rig/L,(375.53?292.14) ng/L,(15.46?15.38) ng/L respectively,which increased obviously in patients (P
2.Solution space of pharmacokinetics and its application on mice brain with 18F-FECNT
Guo-xian, CAO ; Zheng-ping, CHEN ; Xing-qin, ZHOU
Chinese Journal of Nuclear Medicine 2011;31(4):255-258
Objective To forward the concept of solution space of pharmacokinetics for studying radiophannaceutical distributions in animal models. Methods On the basis of special solutions of differential equations of pharmacokinetics, the solution space was established using the characteristics of linearly independent particular solutions and used to express the pharmacokinetics of pharmaceuticals in vivo. 0. 2 ml (7.4 MBq) 2β-carbomethoxy-3β- (4-corophenyl)-8-(2-18F-fluoroethyl) nortropane (18F-FECNT) was injected through tail vein into normal mice. The mice were sacrificed by decapitation at 5, 15, 30, 60, 120 and 180 min post-injection. Brain tissues were removed and weighed, and radioactivity was counted with the γ-counter. The solution space theory was used to study pharmacokinetics of 18F-FECNT in brain tissues of mice. Results The result showed that all solutions of pharmacokinetics models, based on differential equations, were included in the solution space. The solution of any organ or tissue could be linearly expressed by bases of the solution space. When the dimension number of the solution space was no more than 3, the solution could be directly expressed with coordinate picture. By this rule in our theory, the quantity of 18F-FECNT in brain tissues of mice changed with time, which was accorded with the experiment. The coordinates of striatum, frontal cortex, temporal cortex, occipital cortex, parietal cortex, hippocampus and cerebellum in the solution space were ( 10.13, 1.49), (4.27, 0. 84), (4.48, 0.81 ), (2.89, 0.98), (3.65, 0. 83),(3.55, 0. 98) and (2.03, 1.25 ), respectively. Conclusion The theory of solution space could be used to study pharmacokinetics of 18 F-FECNT in mice brain.
3.Class Ⅱa Bacteriocins:Biosynthesis, Structure and Activity
Yan-Ni LV ; Ping-Lan LI ; Wei ZHOU ; Guo-Rong LIU ; Xing-Hua GUO ;
Microbiology 1992;0(05):-
Class Ⅱa bacteriocins can be considered as the major subgroup of bacteriocins from lactic acid bacteria, not only because of their large number, but also because of their activities and potential applications. They have first attracted particular attention as listericidal compounds and are now believed to be the next in line if more bacteriocins are to be approved in the future. The present review attempts to provide an insight into general knowledge available for class Ⅱa bacteriocins and discuss common features and recent findings concerning these substances.
4.Clinical effects of sub-maximum ergometry exercise rehabilitation in patients with chronic obstructive pulmonary disease.
Hao WU ; Xing-guo SUN ; Wen-chao GU ; Guang-sheng QI ; Wei-ju ZHOU ; Ya-ping YUAN ; Guo- ping DENG
Chinese Journal of Applied Physiology 2015;31(4):382-384
OBJECTIVETo study the rehabilitation effects ergometry on COPD patients.
METHODSThirty COPD out-patients in our Hospital were randomly divided into 2 groups. Rehabilitation group, 15 patients, performed leg ergometry exercise of 80% peak Watt x 30min/d x 3d/w x 12w. Another 15 patients were control group without exercise. All patients received conventional therapy. Pulmonary function testing (PFT), cardiopulmonary exercise testing (CPET), arterial blood gas analysis (ABG), Borg and CAT sores were done at both baseline and 12 w.
RESULTSThere was no statistically difference in lung function testing, blood gas analysis and cardiopulmonary exercise test when pre- exercises between 2 sub-groups. The IC, peak VO2 and peak, W of rehabilitation group significantly increased (P < 0.05); and Borg and CAT.scores significantly decreased (P < 0.05) from baseline; and other PFT and ABG did not change (P > 0.05). While there was no difference in control group (P > 0.05).
CONCLUSIONLeg submaximal ergometry rehabilitation improves health condition and ameliorate dyspnea symptoms in COPD patients.
Blood Gas Analysis ; Dyspnea ; therapy ; Exercise Test ; Exercise Therapy ; Humans ; Pulmonary Disease, Chronic Obstructive ; therapy ; Respiratory Function Tests
5.The prevalence of metabolic syndrome in adolescents according to 3 different diagnostic criteria
Ping LI ; Chao GUO ; Xue LI ; Ranhua JIANG ; Xing HUANG ; Yan WANG ; Ling LI
Chinese Journal of Endocrinology and Metabolism 2017;33(2):93-97
Objective To evaluate the differences and consistency of different diagnostic criteria for metabolic syndrome ( MetS ) in adolescents. Methods This cross-sectional study enrolled 920 healthy middle school students (aged11-16years,53.2% males). All participants underwentant hropometric and biochemical examinations,andwere diagnosed as MetS separately using criterion of the Pediatric Academy of Chinese Medical Association ( abbreviated as Chinese criterion) , 2007 International Diabetes Federation criterion ( IDF criterion) , and Cook criterion based on the National Cholesterol Education Program-Adult Treatment Panel in 2003 ( Cook criterion) . Statistic analysis was used to compare the prevalence of MetS diagnosed and the individual MetS components detected by the different diagnostic criteria, and to evaluate the differences and consistency between the three criteria. Results The prevalence of MetS diagnosed with the Cook criterion (16. 2%) was significantly higher than that by the Chinese criterion(11. 0%) and the IDF criterion. The most frequently detected components were low high-density with the Chinese criterion and IDF criterion, hypertension with the Cook criterion. The least frequently detected component was hyperglycemia with each criterion. The consistency was found stronger between the Chinese and IDF criteria ( Kappa=0. 798-0. 829, P<0.01), but weak between the Cook and the other two criteria (Kappa=0. 465-0. 789,P<0. 01). The adolescents solely diagnosed as MetS patients by the Cook criterion but not the other two criteria had more central obesity, higher plasma glucose and lipid levels and HOMA insulin resistance index (all P<0. 05). Conclusion The prevalence of MetS and components diagnosed with the three criteria was evidently different. The Cook criterion may diagnose more adolescents with higher cardiovascular risks and insulin resistance.
6.Effect of carvedilol on cardiac metalloproteinases and tissue inhibitors of metalloproteinases after myocardial infarction in rats
Jing YI ; Zheng MING ; Chen XING ; SHAO-PING ; Zhi-Fu GUO ;
Academic Journal of Second Military Medical University 1981;0(04):-
Objective:To investigate the effect of carvedilol on expression of cardiac matrix metalloproteinases(MMPs)and tissue inhibitors of metalloproteinases(TIMPs)after myocardial infarction in rats.Methods:An animal model of acute myocar- dial infarction(AMI)was established by descending left coronary artery ligation in 24 rats and they were divided into carvedilol (10 mg?kg~(-1)?d~(-1))group(n=12)and normal saline group(n=12).Sham operated group(n=9)received the same proce- dure but with no ligation.All animals were treated for 6 weeks via a gastric lavage.Heart function and hemodynamic parame- ters were determined after 6 weeks.The protein expression of cardiac MMP-2,MMP-9 and TIMP-2 was detected by immuno- histoehemical analysis in AMI groups,and the MMPs activities were assessed by zymography.Gene expression of myocardial MMPs/TIMPs(MMP-2,9 and TIMP-1,2)and cytokines(TNF-?,IL-1?)were measured by real-time quantitative PCR.Re- suits:Compared with Sham-operated group,earvedilol group had significantly higher left ventricular end-diastolic pressure(LV- EDP)and lower LV upstroke velocity(+dp/dt_(max))and LV descent velocity(-dp/dt_(max))(P
7.Epidemic analysis of brucellosis in Datong of Shanxi province between 2006 and 2009
Xue-ping, GA ; Zhen-yu, LI ; Man-qing, GUO ; Wen-hua, WU ; Yue-zhen, XING
Chinese Journal of Endemiology 2011;30(5):552-554
ObjectiveTo investigate the epidemic situation of brucellosis in Datong city, and to provide scientific evidence for making appropriate prevention and control measures. MethodsSurveillance data of human brucellosis in 7 countris and 4 districts in Datong city between 2006 and 2009 were collected, throng the national network straight quote system in an infectious diseases. Excel database was established and all data were statistically analyzed. Incidence of brucellosis in local population was analyzed. The regional distribution, time distribution,occupation, age and sex distribution were analyzed. Epidemic characteristics and trend of brucellosis in Datong city were summarized. Results A total of 5195 cases of brucellosis patients in Datong were found between 2006 and 2009, the average incidence rate was 57.51/10 million. All counties had the disease, and the onset of the disease mainly in the spring and summer. Most cases were young males. Farmer case was 81.67%(4243/5195) of the total patients. ConclusionsFrom 2006 to 2009, epidemic characteristic of Datong human brucellosis ishigh-low-high(incidence). We suggests the Department concerned to strengthen the prevention and control of the disease in some counties, focusing on spreading of disease prevention and control knowledge among farmers and increase their self-protection awareness.
8.PCNA, Bcl-2 and TERT expression in epiretinal membrane of rat traumatic proliferative vitreoretinopathy
Li-Ping, XUE ; Feng-Ying, KANG ; Shi-Xing, HU ; Xin-Guo, DENG ; Shao-Chun, LIN
International Eye Science 2005;5(1):19-22
· AIM: To explore the dynamic expression and correlation among telomerase catalytic subunit (TERT), proliferating cell nuclear antigen ( PCNA) and antiapoptosis protein Bd-2 which relate to cell proliferation in epiretinal membrane of rat traumatic proliferative vitreoretinopathy(PVR).· METHODS: S-P technique was applied for immunohistochemical staining of epiretinal membrane of traumatic PVR with TERT, PCNA and Bcl-2 antibody. HE staining was also carried out. The staining results were analyzed with image analysis system.· RESULTS: The positive rate and average A of PCNA protein were upregulated at first and then down-regulated, with the peak value in 14d Group, which was significantly different from those in 7d Group and 28d Group.The positive rate and average A of TERT and Bcl-2 were also upregulated at first and then down-regulated, with the peak value in 14d Group and 21d Group, which were significantly different from those in 7d Group. There was significant correlation among PCNA, Bcl-2 and TERT protein expression (P≤0.01).· CONCLUSTON: TERT and Bcl-2 take part in the regulation of proliferative cells in epiretinal membrane of traumatic proliferative PVR, with high correlation with the dynamic changes of cell proliferation.
9.Cultivation and isolation of the bone marrow mesenchymal stem cells
Guo-Ping AI ; Yong-Ping SU ; Guo-He YAN ; Xing-Ze RAN ; Xiao-Hong LIU ; Cheng-Ji LUO ; Tian-Min CHENG
Journal of Third Military Medical University 2001;23(5):553-555
Objective To observe some biological features of bone marrow mesenchymal stem cells and explore the best conditions for isolatin g and culturing in vitro. Methods Common cell culture techn ique, light and electron microscopy were used to study the effects of the growth , proliferation, morphology of the bone marrow mesenchymal stem cells in differe nt adherent time, concentration of serum and cell density. Results The best culture condition in vitro for growth was 4-24 hours adherent time, 5%-10% fetal bovine serum, (4-8)×104/ml cell density. The cells were sp indle in shape and had a strong ability of proliferation. The time for cell duplication was 3 to 4 days. The cells showed the characteristics of stem cell s in electron microscope. Conclusion The best condition for iso lation and culture of bone marrow mesemchymal stem cells was successfully establ ished and some biological features were obserred. It found a base for further in vestigation and using of mesenchymal stem cells.
10.Sevoflurane used for induction and maintenance of anaesthesia in children.
Xi-ying ZHANG ; Qu-lian GUO ; Jiang-ping WANG ; Yi-ru TONG ; Xing-xing ZHOU ; Li-dan JIANG
Journal of Central South University(Medical Sciences) 2007;32(3):503-506
OBJECTIVE:
To observe the effect of sevoflurane on the induction and maintenance of anaesthesia in children, and to evaluate its safety and effectiveness.
METHODS:
Forty child patients who conformed to the selection standard were operated under anaesthesia with intubation.Without premedicant, all the patients inhaled 100% oxygen(1L/min) and sevoflurane by mask, and escalated the concentration of sevoflurane (to the maximum concentration 7%) until the lash reflex disappeared, and the maintenance concentration was controlled under 4%. All the patients were intubated, together with vecuronium 0.1mg/kg.
RESULTS:
With little tract excretion, the achievement ratio of induction by sevoflurane was 100%, and the children tolerated well. With stable hemodynajmics,1% approximately 4.0% maintenance concentration of sevoflurane during the operation showed effective anaesthesia, no decreased heart rate or blood pressure appeared, and all the patients' body temperature was normal.
CONCLUSION
Sevoflurane for children induction can bring fewer stimuli in the respiratory tract,less cardiac vascular inhibition and palinesthesia time. Anaesthesia in children induced by sevoflurane is safe and effective.
Anesthesia
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methods
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Anesthesia, Inhalation
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Anesthetics, Inhalation
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administration & dosage
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Child
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Child, Preschool
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Female
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Humans
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Male
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Methyl Ethers
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administration & dosage
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Sevoflurane
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Treatment Outcome